By the , the sum of the angles in a triangle is equal to 180°. therefore, m∠a+m∠b+m∠c=180° . using the , (6x)°+90°+(x+6)°=180° . to solve for x, first combine like terms to get 7x + 96 = 180. using the , 7x = 84. then, using the division property of equality, x = 12. to find the measure of angle a, use the substitution property to get m∠a=6(12)° . finally, simplifying the expression gets m∠a=72° .

What point is the projection of q on a) r b) s c) t

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.